V-block.



H. B. SWANTUSCH.

A V-BLooK.

APPLIOVATION FILED 11116.12, 1913. 1,1 19,470. Patented De@.1,1914.

2 SHEETS-SHEET 1.

Eris-l fra-.E

@Hof/mwa H. B. SWANTUSGH.

V-BLOGK.

APP'LIGATION FILED AUG.12,.1913.

Patented Dec. 1, 191%.

2 vSHEETS-SHEET 2.

HENRY B. SWANTUSCH, F THREE RIVERS, MICHIGAN.

v-BLocK.

vSpecification of Letters Patent.

LPatented Dec. 1, 1914.

Application filed August 12, 1913. Serial No. 784,430.

To all whom it may concern.'

Be it known that I, HENRY B. SWAN- TUscH, a citizen of the United States, residing at Three Rivers, in the county of St. Joseph, State of Michigan, have invented certain Vnew and useful Improvements in V- Blocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such a's will enable others 0 skilled in the art to which it appertains to make and use the same.

This invention relates to a jig and has special reference to a V-block of novel con- 5 such blocks.

The principal object of the invention is to provide an improved form of V-block especially adapted for use in drilling cylindrical bodies such as shafts. 0 A second object of the invention is to provide a novel construction of jig made from several of such blocks.

With the above and other objectsin view the invention consists in general of certain 5 novel details of construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and Figure 1 is a front elevation of a V-blockconstructed in accordelevation thereof. Fig. 3 is a plan view of such a block. Fig. 4 is a sectionon the -line 4--4 of Fig. 2. Fig. 5 is a plan view of a block used when the holes to bedrilled are close together. Fig. 6 is a view of a jig constructed from several of these blocks. Fig. 7 is a section on the line 7-7 of Fig. 6.

Fig. 8 is a section on the line 8-8 of Fig. 6. l In the V-block constructed in accordance with this invention there is provided a body 10, preferably rectangular in form and having Von its upper and lower faces V-shaped grooves 11, one of these grooves `being larger than the other. Through the body parallel to the grooves extends an opening 13 for purposes hereinafter to be described. mxtending from the frontof the block into the opening 13 is a set screw 14. Extending vertically of the rear face of this block is a dove-tail groove l5 wherein is mounted a slide 16 having bevel edges 17 one of which fits against the side of the groove. Thisslide 1s of less width than the groove 15 so struction anda jig made from several ofance with this invention. Fig. 2 is a side that take up vshoes 18 may be inserted for the purpose of taking up any lost motion in the t of the slide in said groove. These shoes are held in adjusted position by machine screws 19 extending diagonally through the material at the edge of the groove and the point of this screw enters suitable notches 20 formed in the shoe 18.

when the .form shown in Fig. 5 is used the arm will be provided with two or more openings and a corresponding number of set screws 27, the openings of course receiving each its bushing.

In using the device as a jig several of these V-blocks are employed and in order to hold them in assembled relation a rod 28 is passed through the opening 13 at each block and vsecured in properly spaced position by means of the set screws 14. One end of this rod projects through one of the openings 13 and on this projecting end is mounted a stop arm 29, the same being held in adjusted position by means of a set screw 30. The upper end of this stop arm is in alinement with the grooves l1 and through this upper end extends a thumb screw 31 provided with a lock nut 32. In Fig. 6 a shaft 33 is shown located in the jig and it will be noted that the arms 24 hold this shaft in the grooves 11 while the screw 31 serves as an abutment or stop for the end of the shaft.- It will of course be obvious that the screw 30 provides for coarse adjustment on the bar 28 while the screw 31 provides for the fine adjustment. In order to assist the arms 24 in holding the shaft 33 on the Vs a clamp arm is provided which consists of a body portion 34 having an opening 35 therein through which passes the bar 28. From this body 34 extends an arm 36 which asses around one side of the shaft 33 and 1s provided above said shaft with a thumb screw 37 having a curved and swiveled shoe 38' on its lower end. This clamp is arranged to swing about the bar.. 28 so that the thumb screw may be alined over the shaft 33 and upon rotation` of this" thumb screw the shaft may be clamped s e'- eurelyin'theV. i

In using a simple V-block the thumb screw 22 is loosed and the shaft placed in the notch or groove 11- -after the arm 24 has.

the shaft.

tance apart. The arm 29 and screw 31 are When it is desired to' drill severalholes spaced atpredetermined. distances the jig shown in Fi' 6 is used. 'In this case the different bloc s are spaced so as to bringthe centers of the bushings at the required disthen adjusted so that when one end of the shaft butts against the screw 3L the lirst bushin' will be centered above the position of the ole to be drilled nearest said end of the shaft. There has thus been provided a changes may bemade in the 'form and consimple and eiicient device of the kind described and of the character specied.

It will be obvious that many minor struction of this invention withoutl departc such as come V-shaped groove anda transverse opening ing from the vmaterial principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described, but it is wished to include all properly Within the scope claimed.

lHaving' thus .described the invention, what is claimed as new, is

1. In a jig, a rod, a' plurality of V-blocks i siidablymounted on said rod and each provided with a V-shaped groove, the grooves 1n the secured blocks being alined, means to lock said blocksv in adjusted position on said rod, bushing su porting means carried `by each .ofsald bloc s and arranged to center a bushing over eachof the grooves, a stop mechanism mounted onone end of said rod` and provided fwithf means for engagin a shaft held in said ygroove, and a clamp groto' engage -a shaft held in said grooves when the clamp ismoved to one posi-tion.`

- 2. A jig consisting of a plurality o'f'V- blocks each. provided'withf a body having a extending parallel w te 7"said groove, a rod passmg through sald opening, and Aset screws extending from one side of eac-h block and'I entering said opening to engage the rod, each of said blocks being provlded .with a vertically disposed guide way, a slide mounted in said guide way and provided with a llongitudinal slot, a thumb screw passing through Afrom each of the said slots into the respective block, an arm extending from each of the slides over the respective grooves, each arm being provided with an opening centrally disposed overthe longitudinal axis of the groove, a set screw ex.- tending through each arm and engaging a drill bushing in the opening therein and a stop device adjustably mounted lon one end of said rod, said sto being provided with a horizontally exten 'ng screw adapted to engage the end of a shaft held on said V-blocks.

3. A jig consisting of a plurality of V- blocks each provided with a body having a V-shaped vgroove on its upper surface and a transverse opening .extending parallel to said groove, a rod passing through said opening, and set screws extending from one side of each block and entering said opening to engage the rod, each of said blocks. being provided with a vertically disposed guide way, a-slide mounted in said guide way and provided with a longitudinal slot, a thumb screw passing through each of said slots into the respective block, an arm extending from each of the slides over the respective grooves, each 'arm being provided with an opening centrally disposed over the longitudinal axis of the groove, a set screw extending through one end of said arm, and a clamp swingingly mounted on said rod Vintermediate two of saidv blocks.

4. 'A jig comprising a plurality of V- blocks each consisting of a body having a V-shaped groove on its'uppersurface and an opening extending parallel with said groove, a rod extending through the openings in said blocks, said blocks being adjustably secured on said rod, arms vertically slidablymounted "on said blocks and provided with drill bushings, an arm swlngingly mounted on Vsaid rod and bent to extend over the 'axis of the grooves in said blocks, and a swiveled screw clamp on said bent end and adapted to engage -a shaft supported on said blocks.

In testimony whereof, I aix my signature, in the presence of two witnesses. v

HENRY B. swANTUsCH.

Witnesses W. H. McCRoRY, A.- L. -Bnown 

